They look great, and installation was easy once I watched the YouTube install video listed in the box (the trick is to use painters tape on the back to mark the keyhole locations, and then transfer the tape to the wall). 

I would strongly recommend reinforcing the bottom of the shelves however. They are just attached with small nails the bottom initially fell off of one when I set some books in it, so I used some wood screws I had on hand to reinforce each bottom and now they are very sturdy.